12196191 has 32 divisors (see below), whose sum is σ = 19906560. Its totient is φ = 6483456.

The previous prime is 12196169. The next prime is 12196193. The reversal of 12196191 is 19169121.

It is not a de Polignac number, because 12196191 - 2⁵ = 12196159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12196193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45205 + ... + 45473.

It is an arithmetic number, because the mean of its divisors is an integer number (622080).

Almost surely, 2^12196191 is an apocalyptic number.

12196191 is a deficient number, since it is larger than the sum of its proper divisors (7710369).

12196191 is a wasteful number, since it uses less digits than its factorization.

12196191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its digits is 972, while the sum is 30.

The square root of 12196191 is about 3492.3045399850. The cubic root of 12196191 is about 230.1837913428.

The spelling of 12196191 in words is "twelve million, one hundred ninety-six thousand, one hundred ninety-one".